TSK · Leviticus 7:32

For the waved breast and the heaved thigh I have taken from the children of Israel out of the sacrifices of their peace offerings, and have given them to Aaron the priest and to his sons as their portion forever from the children of Israel.'"

and the breasts and the right thigh Aaron waved for a wave offering before Yahweh, as Moses commanded.

and the priest shall wave them for a wave offering before Yahweh. This is holy for the priest, together with the breast that is waved and the thigh that is offered. After that the Nazirite may drink wine.

This shall be the priests' due from the people, from those who offer a sacrifice, whether it be ox or sheep, that they shall give to the priest the shoulder, and the two cheeks, and the maw.

Don't you know that those who serve around sacred things eat from the things of the temple, and those who wait on the altar have their portion with the altar?